powerpc/83xx: configure CONFIG_POST for kmcoge5ne

kmcoge5ne starts the post tests if the testpin on
the board was enabled. Currently it does simply a memory
test.

Signed-off-by: Thomas Herzmann <thomas.herzmann@keymile.com>
Signed-off-by: Holger Brunck <holger.brunck@keymile.com>
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>

board/keymile/common/common.h

@@ -32,7 +32,11 @@ struct km_bec_fpga {
 	unsigned char	res1[3];
 	unsigned char	bprth;
 	unsigned char	bprtl;
-	unsigned char	res2[6];
+	unsigned char	gprt3;
+	unsigned char	gprt2;
+	unsigned char	gprt1;
+	unsigned char	gprt0;
+	unsigned char	res2[2];
 	unsigned char	prst;
 	unsigned char	res3[0xfff0];
 	unsigned char	pgy_id;

board/keymile/km83xx/km83xx.c

@@ -27,6 +27,7 @@
 #include <asm/processor.h>
 #include <pci.h>
 #include <libfdt.h>
+#include <post.h>
 
 #include "../common/common.h"
 
@@ -288,3 +289,39 @@ int hush_init_var(void)
 	return 0;
 }
 #endif
+
+#if defined(CONFIG_POST)
+int post_hotkeys_pressed(void)
+{
+	int testpin = 0;
+	struct km_bec_fpga *base =
+		(struct km_bec_fpga *)CONFIG_SYS_KMBEC_FPGA_BASE;
+	int testpin_reg = in_8(&base->CONFIG_TESTPIN_REG);
+	testpin = (testpin_reg & CONFIG_TESTPIN_MASK) != 0;
+	debug("post_hotkeys_pressed: %d\n", !testpin);
+	return testpin;
+}
+
+ulong post_word_load(void)
+{
+	void* addr = (ulong *) (CPM_POST_WORD_ADDR);
+	debug("post_word_load 0x%08lX:  0x%08X\n", (ulong)addr, in_le32(addr));
+	return in_le32(addr);
+
+}
+void post_word_store(ulong value)
+{
+	void* addr = (ulong *) (CPM_POST_WORD_ADDR);
+	debug("post_word_store 0x%08lX: 0x%08lX\n", (ulong)addr, value);
+	out_le32(addr, value);
+}
+
+int arch_memory_test_prepare(u32 *vstart, u32 *size, phys_addr_t *phys_offset)
+{
+	*vstart = CONFIG_SYS_MEMTEST_START;
+	*size = CONFIG_SYS_MEMTEST_END - CONFIG_SYS_MEMTEST_START;
+	debug("arch_memory_test_prepare 0x%08X 0x%08X\n", *vstart, *size);
+
+	return 0;
+}
+#endif

include/configs/km8360.h

@@ -266,6 +266,14 @@
 	BATU_BL_256M |\
 	BATU_VS |\
 	BATU_VP)
+/* enable POST tests */
+#define CONFIG_POST (CONFIG_SYS_POST_MEMORY|CONFIG_SYS_POST_MEM_REGIONS)
+#define CONFIG_POST_EXTERNAL_WORD_FUNCS /* use own functions, not generic */
+#define CPM_POST_WORD_ADDR  CONFIG_SYS_MEMTEST_END
+#define CONFIG_TESTPIN_REG  gprt3	/* for kmcoge5ne */
+#define CONFIG_TESTPIN_MASK 0x20	/* for kmcoge5ne */
+#define CONFIG_CMD_DIAG	/* so that testpin is inquired for POST test */
+
 #else
 #define CONFIG_SYS_IBAT6L	(0)
 #define CONFIG_SYS_IBAT6U	(0)